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900235

Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

amine functionalized, fluorescence λem 540 nm, 4 μM in 10 mM PBS

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Synonym(s):
Fluorescent nanocrystals, QDs
Linear Formula:
CdSe/ZnS

Quality Level

form

dispersion

λmax

525 nm

fluorescence

λem 540 nm
λem 540 nm±10 nm, quantum yield >50%

functional group

amine

storage temp.

2-8°C

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This Item
900238900218900226
fluorescence

λem 540 nm, λem 540 nm±10 nm, quantum yield >50%

fluorescence

λem 600 nm, λem 600 nm±10 nm, quantum yield >50%

fluorescence

λem 600 nm, λem 600 nm±10 nm, quantum yield >50%

fluorescence

λem 645 nm, λem 645 nm±10 nm, quantum yield >50%

λmax

525 nm

λmax

585 nm

λmax

585

λmax

-

functional group

amine

functional group

amine

functional group

-

functional group

carboxylic acid

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

-

storage temp.

2-8°C

form

dispersion

form

dispersion

form

dispersion

form

dispersion

General description

Reactive group: Amine.

Application

The amine functionalized CdS/ZnS or CdSe/ZnS quantum dots (QDs) find applications in bioimaging and biosensing. The three main conjugation approaches reported in literature are conjugation using glutaraldehyde as a linker, conjugations with carboxylic acid containing molecules by using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) coupling, and direct conjugation with isothiocyanates bearing molecules.

Caution

Do not freeze.

Legal Information

Product of Ocean Nanotech, LLC.

pictograms

Environment

hcodes

Hazard Classifications

Aquatic Chronic 2

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3


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Kumar P, et al.
Sensors and Actuators B, Chemical, 202, 404-404 (2014)
Jian Wei Tay et al.
Scientific reports, 4, 3918-3918 (2014-01-30)
Phase distortions due to scattering in random media restrict optical focusing beyond one transport mean free path. However, scattering can be compensated for by applying a correction to the illumination wavefront using spatial light modulators. One method of obtaining the
Kavitha Pathakoti et al.
Journal of environmental sciences (China), 25(1), 163-171 (2013-04-17)
Quantum dots (QD) nanoparticles have been widely used in biomedical and electronics fields, because of their novel optical properties. Consequently it confers enormous potential for human exposure and environmental release. To increase the biocompatibility of QDs, a variety of surface
Lily Yang et al.
Small (Weinheim an der Bergstrasse, Germany), 5(2), 235-243 (2008-12-18)
Epidermal growth factor receptor (EGFR) targeted nanoparticle are developed by conjugating a single-chain anti-EGFR antibody (ScFvEGFR) to surface functionalized quantum dots (QDs) or magnetic iron oxide (IO) nanoparticles. The results show that ScFvEGFR can be successfully conjugated to the nanoparticles

Articles

Dr. Delehanty and researcher introduce recent advances in the use of cadmium-free quantum dots for bioimaging. Focus is placed on strategies that have emerged in the last five years for design, synthesis, and surface modifications of non-Cd quantum dots (QDs) for bioimaging and sensing applications.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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